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/ No, we can’t. Do we have to wear a uniform? Yes, we do. / No, we don’t. 。 We have to be quiet. 根據(jù)句意,用 can和 can’t填空。 have to don’t / doesn’t have to 必須,不得不 不必 你不必在上午七點(diǎn)前到校。Unit 4 Don’t eat in class. Section A Period 2 (3a3c) Do you know the rules in these places? hospital meeting room gas station Look at the two girls. What are the differences between the two expressions? I’m tired. I want to have a sit. Can I sit here? Yes, you can. I don’t like school, but the rules let all of us go to school. So I have to go to school. 3a Write the rules for the school library. Library Rules 1. _